辛夷挥发油纳米脂质体的制备工艺研究

目的:采用薄膜分散-超声-膜过滤法制备辛夷挥发油纳米脂质体,考察胆酸钠、胆固醇、药物浓度、超声功率和超声时间等因素对辛夷挥发油纳米脂质体粒径及包封率的影响,并对纳米脂质体的形貌、稳定性进行分析。方法:薄膜分散-超声-膜过滤法制备纳米级辛夷挥发油脂质体,气相色谱法测定包封率,激光散射粒度仪测定纳米脂质体粒径。结果:采用薄膜分散-超声-膜过滤法制备的脂质体分散性好,粒径主要分布在(35±5)nm,包封率达(91.7±3)%。结论:薄膜分散-超声-膜过滤法是制备辛夷挥发油纳米脂质体的一种简单可行的方法。

Preparation of nano-liposome enveloping Flos Magnoliae volatile oil

OBJECTIVE: To discuss the influences of the concentrations of sodium cholate, cholesterol and drug, preparation temperature, ultrasonic time and power on the particle size and encapsulation efficiency of Flos Magnoliae volatile oil nano-liposome through film-ultrasonic wave technique together with membrane filter method. METHODS: The nano-liposomes were prepared by film-ultrasonic wave technique together with membrane filter method. The drug content in liposomes was determined by gas chromatography and the particle size was determined by laser light scattering granularity equipment. RESULTS: By film-ultrasonic wave technique together with membrane filter method, the liposomes in the range of 30-40 nm were prepared. The prepared nano-liposomes demonstrated good decentralization and homogeneity, and the encapsulation efficiency was (91.7+/-3)%. CONCLUSION: Film-ultrasonic wave together with membrane filter method is a simple method to fabricate nano-magnoliae liposome.